Cao Rui, ch. 曹叡, py. cáo rùi, wg. Ts'ao-Jui (205-239) was the son of Cao Pi and the second emperor of the Cao Wei. He is also known as the Emperor Ming of Wei, ch. 魏明帝, py. wèi míng dì, wg. Wei Ming-ti. His courtesy name was Yuanzhong (元仲). Cao Rui's reign was viewed in many different ways throughout Chinese history. Wikipedia
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